Upload File

university of california, irvine · web viewexamples of polar and nonpolar molecules: hydrogen...

  • Home
  • Documents
  • University of California, Irvine · Web viewExamples of polar and nonpolar molecules: Hydrogen Oxygen Water Methane 7.4 Hydrogen bonds Defined as: 7.5 Results of hydrogen bonding:
10
Lecture 2 Basics: Bonds and polarity Vocabulary: Ionic bond Covalent bond Hydrogen bond Bonding capacity Electronegativity Polar / Nonpolar Hydrophobic / Hydrophilic Solvent / solute Dissolution/Solubility 7.1 Types of chemical bonds: _______________ _________________ ________________ 7.2 Ionic bonds Formed between: Lecture 2 Page1

Upload: others

Post on 04-Feb-2021

2 views

Category:

Documents


0 download

Report

TRANSCRIPT

Lecture 2 Basics: Bonds and polarity

Vocabulary:

Ionic bond

Covalent bond

Hydrogen bond

Bonding capacity

Electronegativity

Polar / Nonpolar

Hydrophobic / Hydrophilic

Solvent / solute

Dissolution/Solubility

7.1 Types of chemical bonds:

_______________ _________________ ________________

7.2 Ionic bonds

Formed between:

Bonds form:

7.3 Covalent bonds and polarity

Forms when:

Bonding capacity:

Electronegativity:

Covalent bonds form molecules:

Polar covalent bonds:

Examples of polar and nonpolar molecules:

Hydrogen

Oxygen

Water

Methane

7.4 Hydrogen bonds

Defined as:

7.5 Results of hydrogen bonding:

Cohesion:

Water is a solvent:

Hydrophilic vs Hydrophobic molecules:

7.6 Polarity in a cell – the plasma membrane

Lipid Bilayers

Lecture 2 Class Notes

Activity 1: (this page intentionally left blank)

Activity 2:

Molecule

P/NP/A

Why?

O – C – O

H – O – H

Functional Group

Structure

P/NP and why

Hydroxyl

Carbonyl

Carboxyl

Amino

Sulfhydryl

Phosphate

Methyl

Activity 3: Properties of a membrane protein - aquaporins

Aquaporins are channels that allow water to cross the plasma membrane. The diagram shows that aquaporins form tetramers (groups of four, doi:10.1038/ncpendmet0980). Describe what parts of the aquaporin channel protein are likely to have nonpolar functional groups.

The image (shown in class) shows a cross-section through a single aquaporin channel (Nature 407, 599-605 (5 October 2000) | doi:10.1038/35036519):

Are water molecules able to maintain hydrogen bonding as they travel through the channel? Why is this important?

What does the asparagine (Asn) do?

How is the asparagine maintained in the protein, given its location in the membrane?

Lecture 2 Page1

Lecture 2

Page

1

Lecture

2

Basics:

Bonds and polarity

Vocabulary:

Ionic bond

Covalent bond

Hydrogen bond

Bonding capacity

Electronegativity

Polar / Nonpolar

Hydrophobic / Hydrophilic

Solvent / solute

Dissolution/Solubility

7

.1

Types of chemical bonds:

_______________

_________________

________________

7.2 Ionic bonds

Formed between:

Lecture 2 Page1

Lecture 2 Basics: Bonds and polarity

Vocabulary:

Ionic bond

Covalent bond

Hydrogen bond

Bonding capacity

Electronegativity

Polar / Nonpolar

Hydrophobic / Hydrophilic

Solvent / solute

Dissolution/Solubility

7.1 Types of chemical bonds:

_______________ _________________ ________________

7.2 Ionic bonds

Formed between:


Interaction of Polar and Nonpolar Organic Pollutants with

Breakthrough Curves of Polar and Nonpolar Vapors …...– instruments.com Q 2 APPNOTE 1-5 Breakthrough Curves of Polar and Nonpolar Vapors on Activated Carbon Results In Figure 1

SUPELCO - Sigma-Aldrich · ©1999 Sigma-Aldrich Co. SUPELCO Bare fused silica Adsorbent Unknown 7µm Polydimethylsiloxane (PDMS) Absorbent Nonpolar 30µm PDMS Absorbent Nonpolar 100µm

Properties of Water. Life depends on Hydrogen bonds in water Water is a polar molecule. – Polar molecules have slightly charged regions. – Nonpolar molecules

2 Lipids are complex molecules composed of carbon, hydrogen, and oxygen. Lipids are insoluble in water and soluble in nonpolar solvents. Most

Introduction to Inhibitors · 2013-12-24 · ionic interactions, hydrogen bonding, hydrophobic nonpolar interactions, and coordinate covalent bonding to a metal ion activator. The

Phospholipid Bilayer Polar Head Nonpolar Tail. Phospholipids Red Region = Glycerol Weak Hydrogen Bonds

Insight into Nanoparticle Charging Mechanism in Nonpolar

Structure and Reactivity: Acids and Bases, Polar and Nonpolar Molecules

Ionic bond Polar covalent bond Nonpolar covalent bond Hydrogen bond

Grandezze Fisiche - TIC - Tecnologia Ingegneria Chimica · Equation (10) has been recommended for nonpolar-nonpolar or polar-nonpolar pairs of molecule. Specifically, molecules which

Nonpolar and Semipolar III-Nitride Optoelectronic Materials and

Aim: What are polar bonds and polar molecules? Polar and Nonpolar Bonds There are two types of covalent bonds Nonpolar Covalent Bonds (share electrons

Electrostatic Charging of Nonpolar Colloids by Reverse ... · PDF fileElectrostatic Charging of Nonpolar Colloids by Reverse Micelles G. Seth Roberts, Rodrigo Sanchez, Roger Kemp,

CHAPTER 19 Problems. Learning Check Solution Nonpolar (NP) Polar (P)

Interaction of small* molecules with membranes. · 2003. 10. 27. · 1) Nonpolar solutes (e.g. nonpolar portions of proteins) - the bilayer is a 2D fluid i.e. “solvent” for small

Gas Chromatography - hplc.sk · MN offers more than 40 different phases for gas chro-matography, from very nonpolar to polar columns. Nonpolar stationary phases (e.g., 100% dimethyl-

Nonpolar Covalent Bonds

Molecular dynamics studies of polar/nonpolar fluid …Molecular dynamics studies of polar/nonpolar fluid mixtures. II. Mixtures of Stockmayer and polarizable Lennard-Jones fluids G

Bonds Ionic Covalent Hydrogen. Bonds Ionic Transfer electrons Form between ions (+/-) Covalent Share electrons Weaker than ionic 2 types – Polar – Nonpolar

Electrostatic Polarization of Nonpolar Substrates: A Study ... · 1 Electronic Supplemental Information for Electrostatic Polarization of Nonpolar Substrates: A Study of Interactions

Simultaneous Detection of Nonpolar and Polar …vertes.columbian.gwu.edu/publicat_html/Vaikkinen 2012 AC.pdfSimultaneous Detection of Nonpolar and Polar Compounds by Heat-Assisted

Use your mobile device to find out macromolecule and write ... · Macromolecule Outline 7 4. Chains of carbon and hydrogen are nonpolar because they share electrons equally; being

Polar Molecular Compounds SWBAT: Identify Polar and Nonpolar Molecules

Light emission characteristics of nonpolar a-plane GaN-based photonic … · Light emission characteristics of nonpolar a-plane GaN-based photonic crystal defect cavities Tsung Sheng

Defensive Armor of Potato Tubers: Nonpolar Metabolite ... · response and when the nascent wound periderm is developing, respectively. 9,10,12 The nonpolar compounds signifying those

Adsorption of Polar and Nonpolar Vapors on Selected ......1 Adsorption of Polar and Nonpolar Vapors on Selected Adsorbents: Breakthrough Curves and their Simulation Dr. Robert Eschrich

Nonpolar Covalent Bonds Electrons _ Produces _____________________________, nonpolar molecules such as CO 2

Comparison of Ionic, Polar Covalent, and Nonpolar Covalent Bonds

C 9 10 · polar molecular compound with hydrogen bonds e. polar molecular substance without hydrogen bonds f. nonpolar molecular substance 57. Identify carbon in the diamond form,

Theory and simulation of polar and nonpolar … and simulation of polar and nonpolar polarizable fluids ... the polarization fluctuations.8’ 9”7-21 Although an approxi-Published

Theory and simulation of polar and nonpolar polarizable fluidsweb.mit.edu/jianshucaogroup/pdfdir/JCP99-6998-1993.pdf · Theory and simulation of polar and nonpolar polarizable fluids

Chemistry - Prince Edward Island...(nonpolar bond), to discover the effect of hydrogen bonding. Melting points (water-ice, camphor or salicylic acid) could also be used for the lab

Define: polar, nonpolar, dipole-dipole forces, ion-dipole forces, Hydrogen “bonding”, and London dispersion forces; sublimation, condensation, evaporation,

Property Scaling Relations for Nonpolar Hydrocarbons